Finding the Fourth Proportional to 1,268,634.62, 1,750,714.76 and 687,876.99
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Solution
The fourth proportional to 1,268,634.62, 1,750,714.76 and 687,876.99 is: 949,269.70
Step by Step Solution
- Step 1: Write the proportion equation
1,268,634.62 : 1,750,714.76 = 687,876.99 : x - Step 2: Convert to fraction form
1,268,634.62/1,750,714.76 = 687,876.99/x - Step 3: Cross multiply
1,268,634.62x = 1,750,714.76 × 687,876.99 - Step 4: Simplify right side
1,268,634.62x = 1,204,276,396,017.99 - Step 5: Solve for x
x = 1,204,276,396,017.99/1,268,634.62 - Step 6: Final answer
x = 949,269.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.